338785240 has 16 divisors (see below), whose sum is σ = 762266880. Its totient is φ = 135514080.

The previous prime is 338785229. The next prime is 338785273. The reversal of 338785240 is 42587833.

It is a super-2 number, since 2×338785240² = 229550877683715200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 8469631 = 338785240 / (3 + 3 + 8 + 7 + 8 + 5 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 338785193 and 338785202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234776 + ... + 4234855.

It is an arithmetic number, because the mean of its divisors is an integer number (47641680).

Almost surely, 2^338785240 is an apocalyptic number.

It is an amenable number.

338785240 is an abundant number, since it is smaller than the sum of its proper divisors (423481640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338785240 is a wasteful number, since it uses less digits than its factorization.

338785240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8469642 (or 8469638 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 338785240 is about 18406.1196345129. The cubic root of 338785240 is about 697.1209915750.

The spelling of 338785240 in words is "three hundred thirty-eight million, seven hundred eighty-five thousand, two hundred forty".